Dev: add timepicker css, part of timepicker lib

Dev: Happy new year 2014! :)
Dev: Question code (title) validation don't accept unique alpha caracter
Dev: Question code accept no alphanum when importing
Fixed issue #08234: Text email send with HTML email are not filtered
Dev: leave PHPmailer do his job
Fixed issue #08505: Multi-flexible text field does not save anything when set up as "Number only".
Dev: use val(), because attr('value') is not updated
Fixed issue #08452: Preview Question Group doesn't load randomly with Randomization Group set
Dev: deactivate randomization when previewing
Dev: better js for languagechanger : allow language changer outside limesurvey form
Dev: If languagechanger is out of limesurvey form : need js to use it.
Escape user input in json

This prevents broken json objects from being saved to the database.
Merge pull request #164 from mfairchild365/uploads-fix

Escape user input in json
Updated translation: German by actxcellence
Updated translation: Lithuanian by simasj
Updated translation: Norwegian (Bokmål) by pmonstad
Updated translation: Norwegian (Nynorsk) by pmonstad
Updated translation: Polish by elisa
Updated translation: Slovenian by dusan
Updated translation: Tamil by apmuthu
Updated translation: Chinese (Simplified) by yanglaw
New Feature #8344: queXML: conditional splitting with new question splitting option
New Feature #8343: queXML: next page message with new question splitting option
Fixed issue #08515: Language switcher does not work in token registration form
Dev: lang search for all existing form
Dev: alternative if form don't exist : remove /lang-XX, /lang/XX and lang=XX from url and do it in GET param
Dev: Remove some hardly coded SQL in RegisterController
Dev: remove some uneended code in RegisterController
Dev: Oups for #08515
Dev: refix #08515: Language switcher does not work in token registration form
Dev: use GET if we are no in form, except if #limesurvey for exist or we are not in preview mode
Dev: default submit in preview is OK, but use data
Dev Added beforeSurveyPage event.
Dev Moved public survey listing to separate action (and new controller).
Dev Unknown survey ids now properly throw a 404 instead of 200.
Fixed issue #8478: Numerical sliders don't use the configured decimal separator
Fixed issue #8480: Error when trying to edit a multilingual survey question
Dev Small text fix
Fixed issue #8511: Save button displays on import / copy survey page
Dev Set correct default controller.